Bump rubocop from 0.76.0 to 0.77.0 (#24)

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.76.0 to 0.77.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v0.76.0...v0.77.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

Diff for: Gemfile.lock

@@ -119,7 +119,7 @@ GEM
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
-    jaro_winkler (1.5.3)
+    jaro_winkler (1.5.4)
     jekyll (3.8.5)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -266,7 +266,7 @@ GEM
     octokit (4.14.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     paint (2.1.1)
-    parallel (1.18.0)
+    parallel (1.19.1)
     parser (2.6.5.0)
       ast (~> 2.4.0)
     path_expander (1.1.0)
@@ -286,7 +286,7 @@ GEM
       psych (~> 3.1.0)
       rainbow (>= 2.0, < 4.0)
     rouge (3.11.0)
-    rubocop (0.76.0)
+    rubocop (0.77.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.6)